The Game of Thrones co-stars often show up on each other’s social media pages, and they always have such sweet things to say about each other.

“This has been amazing and hard,” Sophie told InStyle of her success. “To have someone who understands what you’re going through, who’s the same age, who came from pretty much the same background—that is so rare. And we’ve had the same struggles in terms of dealing with body image and puberty and growing up in the public eye.”

She added, “But I found my strength in her, and I think she found her strength in me.”